SOLUTION: If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 80 minutes, then Torricelli's law gives the volume in gallons of water remaining in the tank afte

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 80 minutes, then Torricelli's law gives the volume in gallons of water remaining in the tank afte      Log On


   



Question 1025043: If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 80 minutes, then Torricelli's law gives the volume in gallons of water remaining in the tank after t minutes as
V(t) = 5000 (1-t/80)^2
(a) Find the volume of water remaining in the tank after 1 hour. (Round your answer to one decimal place. Include units with your numerical answers.)
After 1 hour (60 minutes), there would be about ________ of water remaining in the tank.
(b) When will there be only 2450 gallons of water remaining in the tank? (Include units with your numerical answers.)
After about _______ there would be only 2450 gallons of water remaining in the tank.
(c) When will there be only 100 gallons of water remaining in the tank? (Round your answer to one decimal place. Include units with your numerical answers.)
After about _____there would be only 100 gallons of water remaining in the tank.

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


a) substitute 60 for and do the arithmetic

b) substitute 2450 for , then solve for



c) substitute 100 for , then solve for

John

My calculator said it, I believe it, that settles it